Absorbent materials for distributing aqueous liquids

US6013589A · kind A · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Thomas Allen DesMarais · Cincinnati, US
• John Collins Dyer · Cincinnati, US
• Gianfranco Palumbo · Bad Homburg vor der Höhe, DE
• Bruno Johannes Ehrnsperger · Bad Soden, DE

Key dates

• Filing date: Mar 13, 1998
• Grant date: Jan 11, 2000
• Expiry date: Mar 13, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T442/651
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Disclosed are materials capable of distributing and releasing aqueous fluids, e.g., urine, to a storage material, and absorbent articles comprising such fluid distribution materials. These fluid distribution materials have A) a ratio of capillary desorption height (i.e., height at 50% capacity) to capillary absorption height (i.e., height at 50% capacity) of not more than about 1.8:1; B) a capillary desorption height of not more than about 50 cm; C) the ability to wick synthetic urine at 31.degree. C. to a height of 15 cm in not more than about 25 minutes; and D) a vertical wicking capacity at 15 cm of at least about 6 g/g.